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For handles with a bolt and nut that won't stay tight, a lock washer doesn't cut it. Trying out a finisher washer as a substitute for a conical compression washer, with the curved top portion against the handle. Got my fingers crossed but it appears to be working.
How hot do the handles get? I would try a nyloc nut.
Might gat a bit hot for nylock i have a set like that wont stay tight.I use a center punch for pean the threads a bit that lasted a while.I will use a chizel this next time.the nylock might work i know the handels get pretty hot some times \.
Drill and tap a set screw in one of the nut flats. Or if its a full sized nut go to 2 jam nuts
In desperation, once in awhile I'll whack a bolt's threads with a center punch about where the middle of the nut will end up.
Staking the threads was another possible method. I just elected to try the Ace store while in town. They didn't have what I was after but hunted something up that might do the job. Thinking a little high temp lube under the bolt head, on the washer's curved surface against the handle and between the handles will be a good thing.
Any hoo, the 2nd hand .410 push through sizer came in and it's time to throw some boolits.
There are several types of lock nuts that do not use nylon (some even use aluminum). Here is one common style; https://www.mcmaster.com/locknuts Also some spring washers. Might help; https://www.mcmaster.com/spring-washers
That'll work. Another style of locknut uses the same principle. A nut is "punched" on the side enough to distort the ID threads, adding friction and "locking" the nut.Quote:
In desperation, once in awhile I'll whack a bolt's threads with a center punch about where the middle of the nut will end up.
https://www.mcmaster.com/locknuts (upper left pic).
Red Loctite 272 is rated to 450°. I doubt the nut ever exceeds that. The mold itself usually runs 400-420.
Squeeze the nut in a vice (very slightly). It compresses the treads and creates a mechanically locking nut. No nylon to melt, no Loctite to have to heat to unthread. I've used it many times on machinery. I've even gone so far as to use a hammer and punch on one of the flats. (sometimes by trial and success due to over doing it :) ).